PT  - JOURNAL ARTICLE
AU  - Achache, Habib
AU  - Zahi, Rachid
AU  - Bouiadjra, Bachir Bachir
AU  - Kaci, Djaafar Ait
AU  - Benouis, Ali
TI  - Novel Geometric Shape to Enhance Bending Resistance in Sandwich Panels: Core Optimization
DP  - 2025 Jun 10
TA  - Acta Mechanica Slovaca
PG  - 6--13
VI  - 29
IP  - 2
AID - 10.21496/ams.2025.005
IS  - 13352393
AB  - The mechanical strength of a sandwich composite material is determined by the interaction between its two outer plates and core structure. This study aims to optimize the geometric and mechanical properties of a sandwich composite through a systematic approach using three-dimensional finite element modeling (FEM) combined with the design of experiments (DOE). Three core geometries (square, hexagon, and square-circle) were evaluated to identify the configuration that maximizes load-bearing capacity while minimizing displacement under stress. Each configuration was tested with various fibre orientations (0°, 45°, and 90°) and composite materials (glass/epoxy, boron/epoxy, and graphite/epoxy) in the laminate plates. The results indicate that the square-circle core design, particularly when combined with boron/epoxy plates at a 0° fibre orientation, achieves the highest force resistance with minimal deformation. This optimized configuration provides a robust framework for applications requiring enhanced structural durability, making it a valuable approach for industries such as aerospace, automotive, and civil engineering.